I don't think it's a role reversal at all, rather everybody has been chasing Apple for so long the competition has caught up and surpassed in some aspects. Who doesn't have a laptop that hasn't been modeled after the macbook. Also remember that everything Apple introduces doesn't turn to gold every time, they have plenty of product feature failures.

The only innovation I saw yesterday which will be copied really came out of Microsoft with the Surface Studio and Surface dial. I'm sure microsoft would really like to see a surge in high-end desktops. The only worthwhile technical feature Apple did was adding touch id in the touch bar, but even then how often would I use this? Also seems like the more logical place for touch id is actually on the mouse where my fingers are a majority of the time.

The only commonality between these two is there marketing departments thinking people want to spend $3k+ on products, no reversal there.